zitadel/internal/api/grpc/server/connect_middleware/translation_interceptor.go
Livio Spring 9ebf2316c6
feat: exchange gRPC server implementation to connectRPC (#10145)
# Which Problems Are Solved

The current maintained gRPC server in combination with a REST (grpc)
gateway is getting harder and harder to maintain. Additionally, there
have been and still are issues with supporting / displaying `oneOf`s
correctly.
We therefore decided to exchange the server implementation to
connectRPC, which apart from supporting connect as protocol, also also
"standard" gRCP clients as well as HTTP/1.1 / rest like clients, e.g.
curl directly call the server without any additional gateway.

# How the Problems Are Solved

- All v2 services are moved to connectRPC implementation. (v1 services
are still served as pure grpc servers)
- All gRPC server interceptors were migrated / copied to a corresponding
connectRPC interceptor.
- API.ListGrpcServices and API. ListGrpcMethods were changed to include
the connect services and endpoints.
- gRPC server reflection was changed to a `StaticReflector` using the
`ListGrpcServices` list.
- The `grpc.Server` interfaces was split into different combinations to
be able to handle the different cases (grpc server and prefixed gateway,
connect server with grpc gateway, connect server only, ...)
- Docs of services serving connectRPC only with no additional gateway
(instance, webkey, project, app, org v2 beta) are changed to expose that
- since the plugin is not yet available on buf, we download it using
`postinstall` hook of the docs

# Additional Changes

- WebKey service is added as v2 service (in addition to the current
v2beta)

# Additional Context

closes #9483

---------

Co-authored-by: Elio Bischof <elio@zitadel.com>
2025-07-04 14:06:20 +00:00

49 lines
1.3 KiB
Go

package connect_middleware
import (
"context"
"connectrpc.com/connect"
"github.com/zitadel/logging"
"github.com/zitadel/zitadel/internal/api/authz"
"github.com/zitadel/zitadel/internal/i18n"
_ "github.com/zitadel/zitadel/internal/statik"
"github.com/zitadel/zitadel/internal/telemetry/tracing"
)
func TranslationHandler() connect.UnaryInterceptorFunc {
return func(handler connect.UnaryFunc) connect.UnaryFunc {
return func(ctx context.Context, req connect.AnyRequest) (connect.AnyResponse, error) {
resp, err := handler(ctx, req)
ctx, span := tracing.NewSpan(ctx)
defer func() { span.EndWithError(err) }()
if err != nil {
translator, translatorError := getTranslator(ctx)
if translatorError != nil {
return resp, err
}
return resp, translateError(ctx, err, translator)
}
if loc, ok := resp.Any().(localizers); ok {
translator, translatorError := getTranslator(ctx)
if translatorError != nil {
return resp, err
}
translateFields(ctx, loc, translator)
}
return resp, nil
}
}
}
func getTranslator(ctx context.Context) (*i18n.Translator, error) {
translator, err := i18n.NewZitadelTranslator(authz.GetInstance(ctx).DefaultLanguage())
if err != nil {
logging.New().WithError(err).Error("could not load translator")
}
return translator, err
}